1. Title: LE TG Report at the 802.16 Opening Plenary - Session #50 Document Number: P802.16h-07/015 Date Submitted: July 16, 2007 Source: Chair of LE TG: Mariana GoldhamerVoice:+972 3 645 6241 mariana.goldhamer@alvarion.commariana.goldhamer@alvarion.com ALVARION 21a HaBarzel Street, Tel Aviv, Israel Venue: Meeting 50, 16-19 July, 2007 Base Document: Purpose: Notice This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16. Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and.http://standards.ieee.org/guides/bylaws/sect6-7.html#6http://standards.ieee.org/guides/opman/sect6.html#6.3 Further information is located at and.http://standards.ieee.org/board/pat/pat-material.htmlhttp://standards.ieee.org/board/pat

2. LE Task Group Report Mariana Goldhamer, TG LE Chair Alvarion

3. LE TG improvement process –We have exist the Letter Ballot 24 We have to make serious improvements to 802.16h draft and the high number of Action Items was incompatible with a stable draft –Last official draft: IEEE 802.16h / D2b created by Xuyong Wu, 802.16h Editor –Comments were requested Data-base: IEEE 802.16h-07/014 –108 comments –Call for Replay comments Dead-line: today at noon San Francisco time –15 Contributions

4. Activity between meetings Minutes of the Meeting #49 –IEEE 802.16h-07/012 Teleconferences organized by the 802.19 TAG Chair – Steve Shellhammer –Be-weekly teleconferences –Good progress in establishing the parameters for coexistence simulations of both 802.11 and 802.16 systems Focus on 3.65GHz

5. 3.65-3.7GHz in US FCC has re-affirmed the shared usage of the band –Maximum peak power is attractive 25W e.i.r.p. peak / 25MHz for BS and Fixed stations 1W e.i.r.p. peak / 25MHz for Mobile stations Two mechanisms for coexistence –Operator coordination Supported by a data-base with locations of BS and Fixed stations –Contention-based protocol Lower 25MHz: restricted-protocols are allowed –Defines events which must occur when two users attempt to simultaneously access the channel –Provides reasonable opportunities for other transmitters to operate Higher 25MHz: un-restricted protocols only –Can avoid co-channel interference with devices using all other types of protocols

6. FCC view on interference What is “harmful interference” ? –Interference assessment is leaved to operators on the field FCC did not define –Power levels –Temporal characteristics –Protocol approval is in FCC responsibility Discussion on 802.16h view will take place according to the Agenda approved by the group –Possibly today afternoon

7. This week Comment resolution and contributions Meetings of LE TG –Daily, starting today at 16:00 –Room: Boardroom C for all the week Meeting with 802.19 –Wednesday at 1:30 pm –Scope: Coexistence of 802.11y with 802.16h –Room: Hospitality?